Cooler



FIG. 1 is a front isometric view of a cooler showing our new design;

FIG. 2 is a rear isometric view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left view thereof shown on an enlarged scale;

FIG. 6 is a right view thereof shown on an enlarged scale;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The dash-dash broken lines throughout the drawing figures depict portions of the cooler that form no part of the claimed design. The broken lines and unshaded surfaces bounded by broken lines form no part of the claimed design. 

CLAIM The ornamental design for a cooler, as shown and described. 